Buy ThinkRobotics NVIDIA Jetson Nano Case Online – ThinkRobotics.com
The JetCase: Jetson Nano Peli Case – Jordan Cormack – Engineering blog for personal projects
JetCase Basic for Jetson Nano Developer Kit from ApeHat on Tindie
Amazon.com: Geekworm N100 Metal Case/Enclosure with Power & Reset Control Switch for Jetson Nano A02/B01/2GB/4GB / Jetson Xavier NX/Jetson Orin Nano : Electronics
Amazon.com: Yahboom Jetson Nano Case Orin Xavier NX Aluminum Alloy Case Compatible with Both Orin Nano/NX 4GB B01, Metal Case with Cooling Fan Reasonable Design : Electronics
Another Jetson Nano case design I made available on Thingiverse -- thinner and less screws needed : r/JetsonNano
Metal Case (Type C) for the Jetson Nano Developer Kit